Rule 8.3 - BRITISH ENERGY GROUP

FORM 8.3

    DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE
              (Rule 8.3 of the City Code on Takeovers and Mergers)


1.   KEY INFORMATION

Name of person dealing        BARCLAYS PLC
(Note 1)
Company dealt in              BRITISH ENERGY GROUP
Class of relevant security    ORD GBP0.10
to which the dealings being
disclosed relate (Note 2)     31 July 2008

2.   INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE

(a)  Interests and short positions (following dealing) in the class of relevant
security dealt in (Note 3)

                            Long                     Short

                      Number       (%)         Number       (%)

(1) Relevant     41,818,470        4.04%    1,156,337      0.11%
securities
(2) Derivatives     810,903        0.08%      475,523      0.05%
(other than
options)
(3) Options and           0        0.00%            0      0.00%
agreements to
purchase/sell
Total            42,629,373        4.12%    1,631,860      0.16%

(b)  Interests and short positions in relevant securities of the company, other
     than the class dealt in (Note 3)

Class of                    Long                     Short
relevant
security:

                  Number              (%)   Number              (%)

(1) Relevant
securities

(2) Derivatives
(other than
options)

(3) Options and
agreements to
purchase/sell

Total


  (c)  Rights to subscribe (Note 3)

Class of relevant security:   Details



3.   DEALINGS (Note 4)

  (a)  Purchases and sales

Purchase/sale Number of Securities Price per unit
                                   (GBP)
Purchase      6,903                7.2950
Purchase      43,061               7.1950
Purchase      22,583               7.2765
Purchase      54,850               7.2489
Purchase      1,623                7.2438
Purchase      14,000               7.1758
Purchase      81,402               7.2106
Purchase      14,548               7.2285
Purchase      699                  7.2950
Purchase      10,765               7.1950
Purchase      9,959                7.2950
Purchase      700                  7.1826
Purchase      400                  7.2750
Purchase      12,897               7.2950
Sale          34,227               7.2514
Sale          54,194               7.2580
Sale          10,319               7.2938
Sale          26,898               7.2445
Sale          400                  7.2750
Sale          8,142                7.2950
Sale          802                  7.2950
Sale          17,561               7.2950
Sale          54,066               7.1963
Sale          700                  7.1826

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          700           7.1826
CFD            Long          26898         7.2445
CFD            Long          34227         7.2514
CFD            Long          54194         7.2579
CFD            Long          400           7.275
CFD            Long          10319         7.2938
CFD            Short         1727          7.1662
CFD            Short         700           7.1826
CFD            Short         81402         7.2105
CFD            Short         14548         7.2284
CFD            Short         54850         7.2489
CFD            Short         400           7.275
CFD            Short         22583         7.2765
CFD            Short         1498          7.2936

(c)  Options transactions in respect of existing securities

(i)  Writing, selling, purchasing or varying

Product name,   Writing,          Number of          Exercise  Type, e.g.      Expiry   Option money
e.g. call       selling,          securities to      price     American,       date     paid/received
option          purchasing,       which the option             European etc.            per unit (GBP)
                varying etc.      relates (GBP)


(ii) Exercising

Product name, e.g.  Number of           Exercise price per
call option         securities          unit (Note 5)




(d)  Other dealings (including new securities) (Note 4)


Nature of transaction Details           Price per unit
(Note 8)                                (if applicable)
                                        (Note 5)




4.   OTHER INFORMATION
None

Agreements, arrangements or understandings relating to options or derivatives


Full details of any agreement, arrangement or understanding between the
person disclosing and any other person relating to the voting rights of
any relevant securities under any option referred to on this form or
relating to the voting rights or future acquisition or disposal of any
relevant securities to which any derivative referred to on this form is
referenced.  If none, this should be stated.




Is a Supplemental Form 8 attached? (Note 9)                 NO


Date of disclosure                         01 August 2008
Contact name                               Geoff Smith
Telephone number                           020 7116 2913
If a connected EFM, name of
offeree/offeror with which connected
If a connected EFM, state nature of
connection (Note 10)


Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk